My friend's mom recently had her debit card hacked into and the hacker charged $550 to it. She buys a lot of things online with the debit card so that could be the reason why, but I decided to take a look at it when I was at their house today.
The laptop is pretty old, around 6 years old, and it has Windows XP on it. They had Norton installed and they told me not to remove it because apparently Norton is the best (sad, I know). I finally persuaded them to remove it and I installed Malwarebytes, SuperAntiSpyware, and Avast. Avast found ~150 viruses and successfully removed them. However, whenever I scanned with Malewatebytes and SuperAntiSpyware I always got these 8 viruses called Rootkits which it just couldn't remove. It said they would be removed, but when you restarted the PC they reappeared. All the other viruses were deleted though.
I tried various methods and I can't seem to remove them. Anyone know anyway to remove them?
What exactly is a rootkit and what threats does it pose?
If you want to learn more about rootkit see rootkit.com - It has sample of various rootkits.
I would suggest copying the family pictures to a usb passport drive and DBANing the hard drive. Re-install the O/S, install Norton( Yeah it is not the best but better than most), update with patches scan the passport usb drive and re-copy the files. Also partition the hard drive into two separate partition one for O/S and one for stuff.